Pakkun had hoped that, in order to kill him, Kakashi would have to let go of him, and thus give him a chance to wiggle free. But the second his body was freed of Kakashi's hand, one knee pressed down on the dog's small ripcage.
One last attempt to open his mouth, one last growl, then Pakkun closed his eyes, this is it, he thought. He remembered, that being a summon, he could and probably should simply pop back home, but his canine loyality ordered him to stay. What ever had taken possession of his master, he could not just leave him to it.
"Kshi", he managed to force through Kakashi's fingers, as he felt – his eyes still closed – the sharp edge of a knife touching his skin.

"I'd let him go, if I was you"
Pakkun opened his eyes, startled. He knew that voice all too well.
Kakashi, kneeling above him, too seemed to be taken by surprise, for a split second his hold on Pakkun losened, enough time for the dog to get free, and hurry to the feet of the figure standing in the cave's entrance.
"Incredible", Kakashi said "you actually managed to isolate part of your consciousness within a Kage Bunshin before I took over", he shook his head in disbelief.
Then he started to laugh, a loud and extroverted laugh which didn't suit his voice at all.
"So, what's your plan?", he asked "All it takes is one blow, and you'll disappear"
Pakkun looked up at the Kakashi standing next to him.
"What makes you so sure that you're the original?", he said.
For a split second False Kakashi hesitated, then he leaped foreward to attack.
"Your chances are fifty-fifty", Kakashi said manner-of-factly, as he jumped out of his attackers way.
"And you need me alive, don't you?"
False Kakashi stared up at where Kakashi was standing on a treebranch, holding a kunai to his own throat.
The next second False Kakashi collapsed, like a doll that got its strings cut. Pakkun waited for him to disappear, then heard a quiet puff from up overheads, as the second Kakashi vanished into thin air.

Pakkun trotted over to his master's collapsed form. He nudged him with his head, then, as this did not show any effect, licked Kakashi's ear, his tongue as wet as the current situation allowed.
It didn't take long and one irritated hand pushed him aside.
Slowly Kakashi sat up. He dried his ear with his sleeve, then looked at Pakkun, his expression somewhere between deep concern and mildl annoyance.
"Are you alright?", he asked.
Pakkun narrowed his eyes.
"What did you get for your sixth birthday?"
Kakashi told him, and Pakkun nodded, satisfied with the answer.
"I'm fine", he then stated "How did you know this was going to work?"
Kakashi got to his feet, he stood for a moment, looked around, then down at Pakkun.
"Come on", he said „I don't think we should stay here any longer than necessary."